The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2014
Filed:
Jul. 28, 2008
Applicants:
Mark Alan Vorderbruggen, Spring, TX (US);
Richard F. Stevens, Sugar Land, TX (US);
Qi Qu, Spring, TX (US);
Inventors:
Mark Alan Vorderbruggen, Spring, TX (US);
Richard F. Stevens, Sugar Land, TX (US);
Qi Qu, Spring, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); C04B 7/32 (2006.01); C04B 7/36 (2006.01); C04B 9/11 (2006.01); C04B 11/28 (2006.01); C04B 28/06 (2006.01); C04B 14/00 (2006.01); C04B 18/00 (2006.01); C04B 7/00 (2006.01); C04B 9/12 (2006.01); C04B 28/00 (2006.01); C04B 28/04 (2006.01); C04B 16/00 (2006.01); C04B 24/00 (2006.01); C04B 28/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and compositions that protect cement compositions from corrosion, particularly from wet carbon dioxide, are provided. A soluble salt additive is provided to react with reaction products generated during the reactions that occur when cement is exposed to wet carbon dioxide. The soluble salt reacts to form an insoluble salt that forms a protective layer on the surface of the cement that protects it from further corrosion from exposure to wet carbon dioxide.